SOLUTION: Question says to simplify... 3x^2(2x^3 - 1) - 2(2x^2 - 3) My work: 2x^3 = 8x 8x - 1 = 7x 2x^2 = 4x 4x - 3 = 1x 3x^2 = 27x

Algebra ->  Expressions-with-variables -> SOLUTION: Question says to simplify... 3x^2(2x^3 - 1) - 2(2x^2 - 3) My work: 2x^3 = 8x 8x - 1 = 7x 2x^2 = 4x 4x - 3 = 1x 3x^2 = 27x       Log On


   

Question 58279This question is from textbook elementary and intermediate algebra
: Question says to simplify...
3x^2(2x^3 - 1) - 2(2x^2 - 3)

My work: 2x^3 = 8x
8x - 1 = 7x
2x^2 = 4x
4x - 3 = 1x
3x^2 = 27x
7x - 1x = 6x
27x + 6x = 33x
33x - 2 = 31x ?????? This question is from textbook elementary and intermediate algebra

Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
Question says to simplify...
3x%5E2%282x%5E3+-+1%29+-+2%282x%5E2+-+3%29 Distribute the 3x^2 and -2
3x%5E2%282x%5E3%29%2B3x%5E2%28-1%29-2%282x%5E2%29-2%28-3%29
6x%5E%282%2B3%29-3x%5E2-4x%5E2%2B6
6x%5E5-3x%5E2-4x%5E2%2B6 You can only combine numbers without variables and numbers with the same exact variables raised to the same exact powers.
6x%5E5%2B%28-3-4%29x%5E2%2B6
6x%5E5-7x%5E2%2B6 You're done.
Happy Calculating!!!